For a Kindle Paperwhite, what apps are generally available? Is there a calendar app?
There are clear limitations with e-ink screens, but, are there not, or were there, apps such as chess, calendar, maybe even e-mail for a Kindle?
https://www.amazon.com/Calendar-Pro/dp/B004Q7GWYG/
looks to be specific to Kindle tablets, and not e-readers?
(surfing the net on a Kindle is, to my mind, an altogether different topic.)